Sterna Mail is a free, private email client for Android. It is built for JMAP, the modern successor to IMAP, and works just as well with any IMAP/SMTP provider. No tracking, no ads, no Google services. The code is GPLv3, and F-Droid checks that the app it ships is byte for byte the one built from the published source. Reading: * Several accounts, JMAP and IMAP side by side, with a unified inbox that works offline * Conversations, search as you type and snooze Writing: * Several identities, each with its own signature * Undo send and scheduled send Privacy and security: * OpenPGP encryption through an app such as OpenKeychain * Remote images and tracking pixels blocked by default, app lock with fingerprint or PIN Setup and notifications: * Setup from your email address alone, or a manual form when the domain publishes nothing * Push notifications without Google, over JMAP, IMAP IDLE or UnifiedPush * Available in ten languages